CN206096429U - Digital electric energy meter field calibration instrument based on radio communication technique - Google Patents

Digital electric energy meter field calibration instrument based on radio communication technique Download PDF

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Publication number
CN206096429U
CN206096429U CN201621145232.7U CN201621145232U CN206096429U CN 206096429 U CN206096429 U CN 206096429U CN 201621145232 U CN201621145232 U CN 201621145232U CN 206096429 U CN206096429 U CN 206096429U
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China
Prior art keywords
energy meter
voltage
signal
electrical energy
electric energy
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Expired - Fee Related
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CN201621145232.7U
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Chinese (zh)
Inventor
徐祎卉
李振华
李振兴
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Priority to CN201621145232.7U priority Critical patent/CN206096429U/en
Application granted granted Critical
Publication of CN206096429U publication Critical patent/CN206096429U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a digital electric energy meter field calibration instrument based on radio communication technique, includes voltage transformer, current transformer, voltage transformer, current transformer are used for obtaining the accurate voltage signal of label picking up, current signal, voltage transformer, current transformer all connect signal acquisition element, signal acquisition element connects the numeral electric energy meter, and digital electric energy meter electric energy pulse transmits to signal acquisition element, and digital electric energy meter passes through the wireless transmission module connect to mobile customer end, and the electric energy pulse of digital electric energy meter is transmitted to mobile client by wireless transmission module through handling the back. The utility model relates to a digital electric energy meter field calibration instrument based on radio communication technique can come logarithmic word formula electric energy meter to advance on -the -spot check -up through mobile client calibration platform, have small, light in weight, convenient operation's characteristics.

Description

A kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology
Technical field
This utility model is related to power system measuring field, and in particular to a kind of digitized electricity based on wireless communication technology Can table on-site calibrator.
Background technology
Digitalized electrical energy meter is referred to and follows IEC 61850-9-1 or IEC 61850-9-2 (LE) communication of digitalization transformer substation Stipulations and IEC 60044-7/8 electronic mutual inductor standards, using the port mode of fiber optic Ethernet, are applied to intelligent substation Electric energy meter.With the development of intelligent substation, the popularization of digitalized electrical energy meter result in the electricity of traditional analog amount input Energy table cannot adapt to technical requirements instantly.To ensure the accuracy of electric energy metrical, high-effect, high-precision digitalized electric energy Table on-site calibrator is the inexorable trend of electric energy meter development instantly.
The digital collection data of digitalized electrical energy meter on-site calibrator can Jing communication modes by signal gathering unit transmit , frequency acquisition is high and constant, does not carry out frequency-tracking, is available for various smart machines to use.At present, it is domestic to digitized electricity Energy table carries out the device and technology of high accuracy field-checking still in the starting stage, can only pass through notebook, industrial computer and plate The system of the hardware such as card composition goes the error of check digit electric energy meter, and such as " multi-epitope digitalized electrical energy meter is verified Chinese patent Instrument(CN102928805A)", a kind of Chinese patent " portable electric meter field calibration system(CN105223536A)" etc..Scene It is both inconvenient or unsightly during operation, it is unfavorable for the popularization and application of digitalized electrical energy meter on-site calibrator.
The content of the invention
For the deficiency that above-mentioned digitalized electrical energy meter tester is present, the utility model proposes a kind of be based on radio communication skill The digitalized electrical energy meter on-site calibrator of art, can verify platform to enter digital electric energy meter in live school by cell-phone customer terminal Test, it is lightweight with small volume, the characteristics of easy to operate.Based on the support of signal gathering unit and wireless transport module, electricity The analogue signal of current voltage can in-situ digitalization, be converted into electrical energy pulse data that suitable signal and synchronous acquisition come in the lump by Wireless network transmissions are carried out using data sharing and high-precision real-time sampling value to remote handset client to electric energy meter Verification.
The technical scheme that this utility model is taken is:
A kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology, including voltage transformer, Current Mutual Inductance Device, voltage transformer, current transformer are used to obtain standard voltage signal, current signal, the voltage transformer, Current Mutual Inductance Device is all connected with signal gathering unit, and the signal gathering unit connects digitalized electrical energy meter, and digitalized electrical energy meter electrical energy pulse is passed Signal gathering unit is transported to, digitalized electrical energy meter connects cell-phone customer terminal, the electricity of digitalized electrical energy meter by wireless transport module Energy impulse after treatment, is transmitted to cell-phone customer terminal by wireless transport module.
The signal gathering unit includes amplifier, filter circuit, A/D modular converters, ARM9 core processors, voltage letter Number, current signal sequentially pass through amplifier, filter circuit, A/D modular converters and ARM9 processors, then by wireless transport module By the data signal transmission for processing to cell-phone customer terminal;Cell-phone customer terminal is used to carry out parameter setting, analytical calculation, data note Record.
The signals collecting of the controllable voltage sensor of ARM9 core processors and current sensor, and receive verified electric energy The output electrical energy pulse of table, with low-power consumption, inexpensive and high performance feature, can be good at meeting demand.
The voltage transformer is the capacitive divider that is open type structure, comprising low-voltage arm electric capacity, high-voltage arm electricity Hold, for voltage transformer to be supplied into 57.7V voltage conversions standard 4V voltage signal for needed for signal gathering unit.
The current transformer is open type structure, and output-current rating is 100mA;Current transformer accesses 40 Ω Sample resistance, current transformer is converted to into standard 4V voltage signal needed for signal gathering unit for 5A current signals.
The wireless transport module is IoT-9608I-L network controllers.The network controller has the ripe Linux of prepackage Operating system, can freely arrange in pairs or groups various nearly long-distance radio communication modules(Optional 2G/3G/4G/zigbee/RFID), with 8 tunnels Transistor-Transistor Logic level(Expansible 8 road RS-485 or 232), multiple systems function is supported, have that data transmission bauds is fast, signal is good, size Little, motility is high and the characteristics of high performance-price ratio.
Cell-phone customer terminal is, based on the Mobile phone APP of AppCan Mobile solution development platforms, can to pass through to be connected to formulation LAN, with it is multiple functional clear and definite, simple to operate smooth the characteristics of.Can real-time reception to signal gathering unit data, Reach information processing and control purpose.
A kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology of this utility model, with following beneficial effect Really:
1), this utility model institute accepted standard voltage, current sensor adopt open type structure, wherein normal voltage to pass Sensor includes low-voltage arm electric capacity and high voltage arm capacitor, and the simple structure is easily manufactured.Normal voltage, electric current can be passed during measurement Sensor is directly sandwiched on tested wire, the characteristics of have anti-tampering, easy to operate during verification.
2), the signal gathering unit that this utility model is adopted is by sampling on the spot in real time.By the data signal after process Transmitted to remote handset client by wireless transport module, information acquisition unit realizes data sharing, analysis, control, storage The multiple function such as deposit, it is accurate in real time with detection, the features such as simple to operation.
3), this utility model replaces hardware system platform using cell-phone customer terminal, and small volume is lightweight, can meet simultaneously Several verification personnel carry out system operatio, and APP only need to be downloaded on mobile phone, and connection designated local area network just can be directly to operating Electric energy meter is verified, and adapts to the network needs for developing rapidly instantly.
Description of the drawings
Fig. 1 is module connection diagram of the present utility model.
Specific embodiment
As shown in figure 1, a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology, including mutual induction of voltage Device, current transformer, voltage transformer, current transformer are used to obtain standard voltage signal, current signal, the mutual induction of voltage Device, current transformer are all connected with signal gathering unit, and the signal gathering unit connects digitalized electrical energy meter, digitalized electrical energy meter Electrical energy pulse is transmitted to signal gathering unit, and digitalized electrical energy meter connects cell-phone customer terminal, digitized by wireless transport module The electrical energy pulse of electric energy meter after treatment, is transmitted to cell-phone customer terminal by wireless transport module.
The signal gathering unit includes amplifier, filter circuit, A/D modular converters, ARM9 core processors, voltage letter Number, current signal sequentially pass through amplifier, filter circuit, A/D modular converters and ARM9 processors, then by wireless transport module By the data signal transmission for processing to cell-phone customer terminal;Cell-phone customer terminal is used to carry out parameter setting, analytical calculation, data note Record.
ARM9 processors(S3C2440AL-40), it is a 32 CMOS microcontrollers of Samsung of Korea research and development. The signals collecting of the controllable voltage sensor of ARM9 core processors and current sensor, and receive the output of verified electric energy meter Electrical energy pulse, with low-power consumption, inexpensive and high performance feature, can be good at meeting demand.
This utility model institute accepted standard voltage sensor, is a capacitive divider for open type structure, comprising Low-voltage arm electric capacity, high voltage arm capacitor, for voltage transformer to be supplied into 57.7V voltage conversions standard for needed for signal gathering unit 4V voltage signals.
The current transformer that this utility model is adopted, has used for reference patent(CN105223536A), also it is open type structure, It is directly sandwiched in during measurement on tested primary current wire.Output-current rating is 100mA;Current transformer accesses one 40 The sample resistance of Ω, standard 4V voltage signal needed for signal gathering unit is converted to by current transformer for 5A current signals.
The wireless transport module is IoT-9608I-L network controllers.The network controller has the ripe Linux of prepackage Operating system, can freely arrange in pairs or groups various nearly long-distance radio communication modules(Optional 2G/3G/4G/zigbee/RFID), with 8 tunnels Transistor-Transistor Logic level(Expansible 8 road RS-485 or 232), multiple systems function is supported, have that data transmission bauds is fast, signal is good, size Little, motility is high and the characteristics of high performance-price ratio.
Cell-phone customer terminal is, based on the Mobile phone APP of AppCan Mobile solution development platforms, can to pass through to be connected to formulation LAN, with it is multiple functional clear and definite, simple to operate smooth the characteristics of.Can real-time reception to signal gathering unit data, Reach information processing and control purpose.
This utility model provides a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology, by optimizing Normal voltage, current sensor, based on more accurate real-time sampling data, data are believed using information acquisition unit Number, electrical energy pulse process after, transmitted to remote handset client by wireless transport module, compare traditional hardware system put down Platform, cell-phone customer terminal verification platform can simultaneously meet several verification personnel carries out system operatio, and small volume, it is lightweight, be easy to Realization, dependable performance, can carry out real time on-line monitoring, with higher application and popularization value to device data.

Claims (5)

1. a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology, including voltage transformer, current transformer, Voltage transformer, current transformer are used to obtain standard voltage signal, current signal, it is characterised in that:The voltage transformer, Current transformer is all connected with signal gathering unit, and the signal gathering unit connects digitalized electrical energy meter, digitalized electrical energy meter electricity Energy impulse is transmitted to signal gathering unit, and digitalized electrical energy meter connects cell-phone customer terminal, digitized electricity by wireless transport module The electrical energy pulse of energy table after treatment, is transmitted to cell-phone customer terminal by wireless transport module.
2. a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology according to claim 1, its feature exists In:The signal gathering unit includes amplifier, filter circuit, A/D modular converters, ARM9 core processors, voltage signal, electricity Stream signal sequentially passes through amplifier, filter circuit, A/D modular converters and ARM9 processors, then will be located by wireless transport module The data signal transmission managed is to cell-phone customer terminal;Cell-phone customer terminal is used to carry out parameter setting, analytical calculation, data record.
3. a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology according to claim 1, its feature exists In:The voltage transformer is the capacitive divider that is open type structure, comprising low-voltage arm electric capacity, high voltage arm capacitor, is used In voltage transformer is supplied into 57.7V voltage conversions standard 4V voltage signal for needed for signal gathering unit.
4. a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology according to claim 1, its feature exists In:The current transformer is open type structure, and output-current rating is 100mA;Current transformer one 40 Ω's of access takes Sample resistance, standard 4V voltage signal needed for signal gathering unit is converted to by current transformer for 5A current signals.
5. a kind of digitalized electrical energy meter on-site calibrator based on wireless communication technology according to claim 1 or claim 2, its feature It is:The wireless transport module is IoT-9608I-L network controllers.
CN201621145232.7U 2016-10-21 2016-10-21 Digital electric energy meter field calibration instrument based on radio communication technique Expired - Fee Related CN206096429U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621145232.7U CN206096429U (en) 2016-10-21 2016-10-21 Digital electric energy meter field calibration instrument based on radio communication technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621145232.7U CN206096429U (en) 2016-10-21 2016-10-21 Digital electric energy meter field calibration instrument based on radio communication technique

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CN206096429U true CN206096429U (en) 2017-04-12

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110988784A (en) * 2019-12-27 2020-04-10 广东电科院能源技术有限责任公司 Error verification system for electric energy metering equipment
US20200292652A1 (en) * 2019-03-11 2020-09-17 Honeywell International Inc. Calibrating a power meter with a current transformer in the field
US10989745B2 (en) 2019-03-11 2021-04-27 Honeywell International Inc. Power meter with fixed segment interactive menu
US11019194B2 (en) 2019-03-12 2021-05-25 Honeywell International Inc. Commissioning power meters with a mobile device
US11119123B2 (en) 2019-03-11 2021-09-14 Honeywell International Inc. Power meter with movable terminal blocks
US11137426B2 (en) 2019-03-11 2021-10-05 Honeywell International Inc. Power meter with master/slave functionality

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11137426B2 (en) 2019-03-11 2021-10-05 Honeywell International Inc. Power meter with master/slave functionality
US20200292652A1 (en) * 2019-03-11 2020-09-17 Honeywell International Inc. Calibrating a power meter with a current transformer in the field
US10955515B2 (en) * 2019-03-11 2021-03-23 Honeywell International Inc. Calibrating a power meter with a current transformer in the field
US10989745B2 (en) 2019-03-11 2021-04-27 Honeywell International Inc. Power meter with fixed segment interactive menu
US11119123B2 (en) 2019-03-11 2021-09-14 Honeywell International Inc. Power meter with movable terminal blocks
US11019194B2 (en) 2019-03-12 2021-05-25 Honeywell International Inc. Commissioning power meters with a mobile device
CN110988784A (en) * 2019-12-27 2020-04-10 广东电科院能源技术有限责任公司 Error verification system for electric energy metering equipment

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170412

Termination date: 20171021